This code point first appeared in version 3.0 of the Unicode® Standard and belongs to the "Specials" block which goes from 0xFFF9 to 0xFFFD.
You can safely add this character in your html code with the entity: 
You can use the u+FFFA copy pc button below.
Easy u+FFFA copy paste:
Unicode meta-data
The following table show specific meta-data that is known about this character.The u+FFFA name is interlinear annotation separator emoji.
| field | value |
|---|---|
| Codepoint (hex) | FFFA, uFFFA |
| Character age | Unicode 3.0 |
| Legacy name (Unicode 1.0) | - |
| Official name (Unicode 15.0) | INTERLINEAR ANNOTATION SEPARATOR |
| resolved name | interlinear annotation separator |
| block | Specials (Specials) |
| common typos | u+FFFA, u+FFFA |
There are alternative spelling that can be found in the wild for the unicode character FFFA like u FFFA, (u+FFFA) or u +FFFA. You can also find u-FFFA, u*FFFA, un+FFFA, uFFFA, u=FFFA or c+FFFA. You can also spell it with u FFFA unicode, u plus FFFA, uncode FFFA or unicode + FFFA.
Its bidirectional class is "ON":Other Neutrals (All other characters, including OBJECT REPLACEMENT CHARACTER)
Glyphs and symbols in your browser
The following unicode chart presents different versions of the glyph corresponding to the unicode characters u+FFFA that are available on your computer.
In order to type this character easily, you may want to download and install a unicode Specials keyboard.
A sample of fonts are used below to display whether the character has a glyph in this font or not.
Encodings (Unicode characters converter)
The following character table converter for +uFFFA allows you to see the value of the character in different encodings
| encoding | hexadecimal | decimal | binary |
|---|---|---|---|
| UTF-8 | EF BF BA | 15712186 | 11101111 10111111 10111010 |
| UCS2 | FA FF | 64255 | 11111010 11111111 |
| UTF-16LE | FA FF | 64255 | 11111010 11111111 |
| UTF-16BE | FF FA | 65530 | 11111111 11111010 |
| UTF7 | 2B 2F 2F 6F 2D | 185475231533 | 00101011 00101111 00101111 01101111 00101101 |
| UTF7-IMAP | 26 2C 2C 6F 2D | 163949866797 | 00100110 00101100 00101100 01101111 00101101 |